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SEGMENT INFORMATION - Schedule of Long-lived Assets, Classified by Major Geographic Regions (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets, amount	$ 347,779	$ 267,065
Long-lived assets, percentage	100.00%	100.00%
Asia & Pacific
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets, amount	$ 233,202	$ 211,139
Long-lived assets, percentage	67.00%	79.00%
PRC
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets, amount	$ 233,202	$ 211,139
Long-lived assets, percentage	67.00%	79.00%
Europe
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets, amount	$ 19,705	$ 22,033
Long-lived assets, percentage	6.00%	8.00%
Germany
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets, amount	$ 19,639	$ 21,966
Long-lived assets, percentage	6.00%	8.00%
United Kingdom
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets, amount	$ 66	$ 67
Long-lived assets, percentage	0.00%	0.00%
United States
Segment Reporting, Asset Reconciling Item [Line Items]
Long-lived assets, amount	$ 94,872	$ 33,893
Long-lived assets, percentage	27.00%	13.00%

X

- Definition

Long-lived assets percentage.

+ References

No definition available.

+ Details

Name:	mvst_LongLivedAssetsPercentage
Namespace Prefix:	mvst_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599

+ Details

Name:	us-gaap_NoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingAssetReconcilingItemLineItems
Namespace Prefix:	us-gaap_
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Period Type:	duration

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- Details

Name:	srt_StatementGeographicalAxis=srt_AsiaPacificMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=mvst_PRCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=srt_EuropeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=country_DE
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=country_GB
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_StatementGeographicalAxis=country_US
Namespace Prefix:
Data Type:	na
Balance Type:
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